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HD64F2149 Datasheet, PDF (157/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer
Program execution state
No
Interrupt generated?
Yes
Yes
NMI?
No
Control level 1
No
interrupt?
Yes
No
IRQ0?
Yes
No
IRQ1?
Yes
IBFI3?
Yes
Hold pending
No
IRQ0?
Yes
No
IRQ1?
Yes
IBFI3?
Yes
No
I = 0?
Yes
Save PC and CCR
I←1
Read vector address
Branch to interrupt handling routine
Figure 5.8 Flowchart of Procedure Up to Interrupt Acceptance in
Interrupt Control Mode 0
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